If you want to write a good quote, tell me how you feel. I'd rather read through a mountain of poorly written, heartfelt quotes than one more quote from Grey's Anatomy. Please, just let me read about your pain, your happiness, or anything other than those drab quotes.
While I agree that quotes from Grey's Anatomy suck, I definitely do NOT want to hear about the feelings of complete strangers. That is entirely too personal and I have no interest in typing what are often poorly-typed bits of drivel. Best to stick with posting quotes from established authors - at least this way you can be fairly certain that you are not submitting quotes with errors.